Greta Thunberg

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This is why gravity batteries are important. Hydro is a specific implementation of gravity battery. A Swiiss company is using superdense blocks being raised in a minimum-loss process, to store energy. It is like hydro, but with dense solid matter.
 
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For the UK Greenpeace did a study about 20 years ago and you would need to dam pretty much every decent shaped valley in Great Britain and stick windmills everywhere to go entirely renewable and pumped storage. It's technically feasible but the impact is out of this World.

Compressed air works but you lose heat as you compress it and need to re-add the heat when you expel it, adiabatic expansion. Storing the heat isn't easy and thus you lose efficiency if you have to provide it back. Also keeping the air dry becomes super super important otherwise your valves freeze and all sorts of nasty things can happen.

Molten salt works but generally you take the heat out to make steam, the energy density sucks and you need the salt super hot to get a turbine that isn't using really wet steam that will eat up plant life.

Hydrogen has the beauty of chemical storage which is way more energy dense than any storage by specific heat or tricks of thermodynamics. The by products are safe and it is understood engineering. But as has been said it's really explosive and doesn't always play nice with other materials. The explosive range is 4% to74% which means almost any leak will be potentially explosive. The ignition energy is tiny static from your jumper is enough. You need to be careful with hydrogen. But hydrogen has one major advantage, Petro-Chem and Centralised Power Generation don't want to shut up shop. Centralised hydrogen generation plays to their respective strengths of chemcial engineering and CCGT's which can easily burn H2 with a few mods. They have the engineering clout to do so safely too. So expect to see the major fossil energy players pile into hydrogen.
 
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We could put treadmills in prisons and make the lags run in 12 hour shifts. And for those that claim they can't run we reintroduce the screw and have those generate electricity too.
 
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For the UK Greenpeace did a study about 20 years ago and you would need to dam pretty much every decent shaped valley in Great Britain and stick windmills everywhere to go entirely renewable and pumped storage. It's technically feasible but the impact is out of this World.

Compressed air works but you lose heat as you compress it and need to re-add the heat when you expel it, adiabatic expansion. Storing the heat isn't easy and thus you lose efficiency if you have to provide it back. Also keeping the air dry becomes super super important otherwise your valves freeze and all sorts of nasty things can happen.

Molten salt works but generally you take the heat out to make steam, the energy density sucks and you need the salt super hot to get a turbine that isn't using really wet steam that will eat up plant life.

Hydrogen has the beauty of chemical storage which is way more energy dense than any storage by specific heat or tricks of thermodynamics. The by products are safe and it is understood engineering. But as has been said it's really explosive and doesn't always play nice with other materials. The explosive range is 4% to74% which means almost any leak will be potentially explosive. The ignition energy is tiny static from your jumper is enough. You need to be careful with hydrogen. But hydrogen has one major advantage, Petro-Chem and Centralised Power Generation don't want to shut up shop. Centralised hydrogen generation plays to their respective strengths of chemcial engineering and CCGT's which can easily burn H2 with a few mods. They have the engineering clout to do so safely too. So expect to see the major fossil energy players pile into hydrogen.

We always have stories about the next great thing in hydrogen storage being something like a carbon nano material sponge etc.

Thinking though the ideal medium would be some sort of liquid carrier to make it easy to move and stop it breaking steel etc. Ironically carbon does that naturally and we have oil so we need to find something similar without actual bondi g
 
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Soldato
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You think Greta does it all for the money?

You might get tax relief on gifting to a charity but it's not like you are going to get back more than you give, so it's ever actually a financial benefit. Hope you didn't think that's somehow the case.. and if you are aware that it's not then what are you even talking about?


Please don't become an accountent.
 
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Australia sets 2050 net zero target, but balks at steeper short-term emissions cuts (msn.com)

"SYDNEY —Australia bowed to growing domestic and international pressure on Tuesday as Prime Minister Scott Morrison committed the country to reaching net zero carbon emissions by 2050.

Speaking just days before the start of the COP26 climate summit, however, Morrison defied calls from world leaders and climate scientists to set a more ambitious 2030 target."


About as believable as Andrew's Pizza Express or can't-sweat-gate excuses, coming from Morrison. This is what the new spin will be isn't it? 2050, then in a decade or so - it will be 2060. And then 2070 and so on.
 
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Australian government sued over global warming by indigenous Torres Strait Islanders ‘on frontline of climate crisis’ — RT World News

Good :)

"Indigenous Torres Strait Islanders have launched a climate change class action against the Australian government over claims it has failed to tackle global warming, risking residents “becoming climate refugees.”
The landmark lawsuit is seeking to pressure the country’s government to take swifter action, implementing steeper cuts to carbon emissions to protect the islanders who are “on the frontline of the climate crisis.”

Lawyers representing land owners on Boigu and Saibai, set to be the worst-hit islands, are calling on the government to reduce carbon emissions to a level that will prevent citizens “from becoming climate refugees.”

The Torres Strait has fewer than 5,000 residents across a collection of 274 low-lying islands between Australia’s mainland and Papua New Guinea. It is thought to be the first climate change lawsuit filed by indigenous Australians.

“If you take away our homelands, we don't know who we are. We have a cultural responsibility to make sure that doesn't happen,” one of the island’s residents, Paul Kabai, said, adding that “becoming climate refugees means losing everything.”

The legal representatives for the island argue that the Torres Strait will become uninhabitable if global temperatures rise by more than 1.5 degrees Celsius. Under existing commitments, temperatures are set to rise globally by 2.7 degrees Celsius by 2100, according to an assessment by the United Nations (UN).

The legal action comes on the same day that Australian Prime Minister Scott Morrison committed to ensuring the country reaches net zero emissions by 2050 ahead of the global COP26 climate summit. The Australian leader’s plan seeks to reach a net zero target in a “practical way” that will neutralize emissions while not crippling the country’s fossil fuel sectors.

The Australian government has urged the UN to dismiss the lawsuit, claiming it is already doing enough to tackle the threat posed by climate change. However, it has not received a response from UN officials."
 
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I can't help but think in 2049 the word elections are going to be largely governments trying to makerhemselves unelectable so they don't have to be the one missing all these targets
 
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Why is that trolling?

It was not trolling, as is reported by many news pages.

It was a personal attack launched against me, pointing with the finger at me, for whatever weird reason.

I would be happy if the moderators begin banning such personal attackers and bullying..


If the UN let's it get to court that could be a huge deal.

Courts can over rule governments so it could be a global issue
 
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